ETF Overlap Tool

Enter up to six ETFs to see how much of each is the same securities. Overlap by weight is the sum, over every holding two funds share, of the smaller of the two weights: 100% means identical portfolios, 0% means nothing in common.

Overlap by weight

186 holdings in all 2 funds
FundIUSBTPLSPositionsHoldings
IUSBiShares Trust iShares Core Universal USD Bond ETF —1%
186 shared
18,254as of Oct 20, 2026issuer data
TPLSThornburg Core Plus Bond ETF 1%
186 shared
— 336as of May 31, 2026SEC filing

Each cell: overlap by weight, and how many positions the two funds share. Stocks, funds and bonds are compared, a bond by its own identifier and a Treasury bill by its maturity date; cash and derivatives are not, and a fund that is partly either shows how much of it is compared.

Held by both funds

1.5% common weight
HoldingIUSBTPLSSmallest
TREASURY NOTE 4.25%, due Nov 15, 20340.33%0.77%0.33%
TREASURY NOTE (OLD) 4.38%, due May 15, 20360.33%1.05%0.33%
TREASURY NOTE 1.75%, due Jan 31, 20290.17%0.20%0.17%
TREASURY NOTE 4%, due Jun 30, 20320.11%0.10%0.10%
TREASURY NOTE 3.88%, due Apr 30, 20310.20%0.07%0.07%
GNMA2 30YR, due Nov 20, 20510.03%1.47%0.03%
PETROLEOS MEXICANOS 7.69%, due Jan 23, 20500.02%0.09%0.02%
WELLS FARGO & COMPANY MTN 5.57%, due Jul 25, 20290.01%0.13%0.01%
FHLMC 30YR UMBS SUPER, due Feb 1, 20520.01%0.96%0.01%
META PLATFORMS INC 6.3%, due May 15, 20560.01%0.15%0.01%
CITIGROUP INC (FX-FRN) 3.79%, due Mar 17, 20330.01%0.15%0.01%
MEDLINE BORROWER LP 144A, due Oct 1, 20290.01%0.05%0.01%
TRANSDIGM INC 144A, due Mar 1, 20290.01%0.13%0.01%
MORGAN STANLEY MTN 5.23%, due Jan 15, 20310.01%0.22%0.01%
BANK OF AMERICA CORP (FXD-FLT) MTN 5.16%, due Jan 24, 20310.01%0.22%0.01%
CITIGROUP INC 4.54%, due Sep 19, 20300.01%0.13%0.01%
ALPHABET INC 3.7%, due Feb 15, 20290.01%0.12%0.01%
JPMORGAN CHASE & CO 5.14%, due Jan 24, 20310.01%0.35%0.01%
BROWN & BROWN INC 4.7%, due Jun 23, 20280.01%0.10%0.01%
FIDELITY NATIONAL INFORMATION SERV 4.55%, due Mar 10, 20290.01%0.15%0.01%
ALPHABET INC 4.1%, due Feb 15, 20310.01%0.12%0.01%
CENTENE CORPORATION 3%, due Oct 15, 20300.01%0.11%0.01%
AON NORTH AMERICA INC 5.45%, due Mar 1, 20340.01%0.36%0.01%
HEWLETT PACKARD ENTERPRISE CO 4.15%, due Sep 15, 20280.01%0.24%0.01%
US BANCORP MTN 5.1%, due Jul 23, 20300.01%0.13%0.01%
ECOPETROL SA 8.38%, due Jan 19, 20360.01%0.10%0.01%
BROADCOM INC 4.15%, due Nov 15, 20300.00%0.19%0.00%
TENET HEALTHCARE CORP 6.75%, due May 15, 20310.00%0.13%0.00%
BANK OF NEW YORK MELLON CORP/THE MTN 4.97%, due Mar 14, 20300.00%0.13%0.00%
LPL HOLDINGS INC 144A, due Mar 15, 20290.00%0.17%0.00%
EDF SA 144A, due Jan 26, 20390.00%0.25%0.00%
CCO HOLDINGS LLC 144A, due Jan 15, 20340.00%0.29%0.00%
POST HOLDINGS INC 144A, due Mar 15, 20360.00%0.05%0.00%
CONAGRA BRANDS INC 4.85%, due Nov 1, 20280.00%0.14%0.00%
TRUIST FINANCIAL CORP MTN 5.87%, due Jun 8, 20340.00%0.13%0.00%
GLOBAL PAYMENTS INC 4.5%, due Nov 15, 20280.00%0.24%0.00%
AMERICAN TOWER CORPORATION 4.9%, due Mar 15, 20300.00%0.15%0.00%
TRIMBLE INC 4.9%, due Jun 15, 20280.00%0.15%0.00%
AMERICAN ELECTRIC POWER COMPANY IN 2.3%, due Mar 1, 20300.00%0.23%0.00%
DTE ENERGY COMPANY 5.85%, due Jun 1, 20340.00%0.16%0.00%
REGAL REXNORD CORP 6.3%, due Feb 15, 20300.00%0.13%0.00%
SANTANDER HOLDINGS USA INC 5.74%, due Mar 20, 20310.00%0.13%0.00%
CROWN CASTLE INC 4.9%, due Sep 1, 20290.00%0.05%0.00%
MSCI INC 144A, due Sep 1, 20300.00%0.24%0.00%
DTE ENERGY COMPANY 5.2%, due Apr 1, 20300.00%0.10%0.00%
BALL CORPORATION 2.88%, due Aug 15, 20300.00%0.23%0.00%
MATTEL INC 5%, due Nov 17, 20300.00%0.09%0.00%
GENUINE PARTS CO 4.95%, due Aug 15, 20290.00%0.12%0.00%
MOBILITY GLOBAL INC 144A, due Jun 15, 20360.00%0.08%0.00%
BROOKFIELD ASSET MANAGEMENT LTD 4.83%, due Apr 15, 20310.00%0.10%0.00%
SIRIUS XM RADIO LLC 144A, due Jul 1, 20290.00%0.12%0.00%
CROWN CASTLE INC 5.8%, due Mar 1, 20340.00%0.13%0.00%
ORACLE CORPORATION 5.25%, due Feb 3, 20320.00%0.20%0.00%
NLG GLOBAL FUNDING MTN 144A, due Jan 23, 20300.00%0.35%0.00%
ENERGEAN ISRAEL FINANCE LTD 8.5%, due Sep 30, 20330.00%0.13%0.00%
COMCAST CORPORATION 3.25%, due Nov 1, 20390.00%0.15%0.00%
LPL HOLDINGS INC 5.15%, due Jun 15, 20300.00%0.15%0.00%
CDW LLC 3.28%, due Dec 1, 20280.00%0.16%0.00%
WILLIS NORTH AMERICA INC 4.55%, due Mar 15, 20310.00%0.19%0.00%
OPEN TEXT CORP 144A, due Dec 1, 20290.00%0.11%0.00%

Reading overlap

Two funds with 80% overlap move together and holding both mostly doubles one exposure and both fees. Low overlap is not the same as diversification: two funds can share no holdings and still be driven by the same factor. To see what a whole portfolio owns, use the portfolio x-ray.

Holdings come from each issuer's daily file where we have one and otherwise from the fund's latest SEC filing, so the two sides of a comparison can be from different dates. The table shows each fund's date.

Bond funds are matched issue by issue: two Treasury funds overlap only where they hold the same bill, note or bond. A fund of short-dated bills replaces its whole portfolio every few months, so holdings from an older filing may have matured; the table says when they have.

Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.